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San Benedetto del Tronto (Italy)
60 km from epicenter
San Benedetto del Tronto. Hotel Holiday. The wall inside the hotel is demaged.
San Benedetto del Tronto (Italy)
60 km from epicenter
San Benedetto del Tronto. Hotel Holiday. The wall inside the hotel is demaged.
Chieti (Italy)
87 km from epicenter
Strong shake of 10 seconds with a notable aftershocks in Chieti...so far
Grenoble (France)
664 km from epicenter
Deviation of an electron beam observed in the particle accelerator ESRF/synchrotron in Grenoble and caused by the Amatrice, Italy earthquake.
The figure represents variation of the electron beam frequency. We observe a first event at 1:38 UTC (main shock) and a second at 2:35 UTC (M5.5 aftershock).
While passing through the accelerator, seismic waves slightly modify the size of the 844m-wide ring in which electrons are travelling. As a consequence, the frequency of the electrons beams has to be ajusted.
A variation of 1 Hz of the beam frequency corresponds to a change of 2 micrometers of the circonference of the ring.
Credits: Jean Marc Koch. European Synchrotron Radiation Facility